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- Abrams Creek (stream)
- Adams Creek (stream)
- Agate Creek (stream)
- Agnes Creek (stream)
- Alamo Creek (stream)
- Alex Spring Reservoir (reservoir(s))
- Alkali Creek (stream)
- Alkali Creek (stream)
- Anderson Reservoir (reservoir(s))
- Antelope Creek (stream)
- Antones Cabin Creek (stream)
- Apple Dam Reservoir (reservoir(s))
- Armstrong Creek (stream)
- Ashponds Hayden Station (reservoir(s))
- Aspen Creek (stream)
- Austrian Creek (stream)
- Avon (populated place)
- Bagley Creek (stream)
- Bar-Bee Lake Reservoir (reservoir(s))
- Basalt (populated place)
- Basin Reservoir (reservoir(s))
- Battle Creek (stream)
- Batton Ditch (canal)
- Batton Gulch (canal)
- Baxter Ditch (canal)
- Bear Creek (stream)
- Bear Creek (stream)
- Bear Gulch Reservoir (reservoir(s))
- Bear Lake (lake)
- Bear River (stream)
- Bear River (city)
- Beard Creek (stream)
- Beaver Creek (stream)
- Beaver Creek (stream)
- Beaver Creek (stream)
- Beaver Creek (stream)
- Beaver Creek (stream)
- Beaver Creek (stream)
- Beaver Creek (stream)
- Beaver Creek (city)
- Beaver Dam Lake (lake)
- Beaver Lake (lake)
- Beaver Lake (lake)
- Bedrock Creek (stream)
- Belden (city)
- Bemis Ditch (canal)
- Benchmark Lake Reservoir (reservoir(s))
- Bennett Reservoir (reservoir(s))
- Benton Lake (lake)
- Berry Creek (stream)
- Bert Siddel Ditch (canal)
- Big Alkali Creek (stream)
- Big Canyon Creek (stream)
- Big Creek (stream)
- Big Creek Lake (lake)
- Big Hole Creek (stream)
- Big Lake (lake)
- Big Pine Lake (lake)
- Big Spruce Lake (lake)
- Bighorn Creek (stream)
- Birdseye (city)
- Black Creek (stream)
- Black Gore Creek (stream)
- Black Lake (reservoir(s))
- Black Lake Number 2 (reservoir(s))
- Blodgett Lake (lake)
- Blue Creek (stream)
- Blue Lake (lake)
- Blue Lake (lake)
- Bolts Ditch (canal)
- Bolts Lake (reservoir(s))
- Bond (city)
- Boot Lake (lake)
- Booth Creek (stream)
- Booth Lake (lake)
- Borah Lake (lake)
- Bowl of Tears (lake)
- Box Canyon Creek (stream)
- Box Canyon Lake (lake)
- Box Creek (stream)
- Boyer Reservoir (reservoir(s))
- Brady Lake (lake)
- Bragg Number 1 Ditch (canal)
- Brett Ditch (canal)
- Brinker Creek (stream)
- Brock Adair Ditch (canal)
- Brown Creek (stream)
- Bruce Creek (stream)
- Brush Creek (stream)
- Buck Creek (stream)
- Buck Lake (lake)
- Buffalo Lake (lake)
- Buffehr Creek (stream)
- Bulkley Reservoir (reservoir(s))
- Bull Park Reservoir (reservoir(s))
- Bunker Creek (stream)
- Burgess Creek (stream)
- Burn Creek (stream)
- Burnt Mesa Ditch (stream)
- Burnt Mesa Filler Ditch (stream)
- Burnt Mesa Reservoir (reservoir(s))
- Burton Creek (stream)
- Burton Ditch (canal)
- Bushy Creek (stream)
- Bussy Creek (stream)
- Butcherknife Creek (stream)
- Butler Creek (stream)
- Butter Lake (reservoir(s))
- Cabin Creek (stream)
- Cache Creek (stream)
- Calf Creek (stream)
- Camp Creek (stream)
- Campbell Creek (stream)
- Campbell Ditch (canal)
- Canard Creek (stream)
- Cantling Creek (stream)
- Card Creek (stream)
- Carter Creek (stream)
- Carter Lake (lake)
- Cary Ditch (canal)
- Cash Ditch (canal)
- Casper Schumm Ditch (canal)
- Casteel Creek (stream)
- Castle Creek (stream)
- Castle Creek (stream)
- Castle Creek (stream)
- Castle Creek Ponds (lake)
- Catamount Creek (stream)
- Cataract Creek (stream)
- Cedar Brook Lake (reservoir(s))
- Cedar Creek (stream)
- Center Creek (stream)
- Chalk Creek (stream)
- Chalk Lake (reservoir(s))
- Chalk Mountain Reservoir (reservoir(s))
- Chambers Reservoir (reservoir(s))
- Channing Creek (stream)
- Chatfield and Bartholomew Ditch (canal)
- Cheney Creek (stream)
- Cherry Creek (stream)
- Cherry Lake (lake)
- Chicken Creek (stream)
- Chimney Creek (stream)
- Chimney Creek (stream)
- Circle Creek (stream)
- CKP Ditch (canal)
- Clark (city)
- Clark Spring Reservoir (reservoir(s))
- Clear Creek (stream)
- Cleveland Lake (lake)
- Cole Black Creek (stream)
- Coleman Creek (stream)
- Columbine (city)
- Columbine Ditch (canal)
- Connel Ditch (canal)
- Copper Spur (city)
- Corral Creek (stream)
- Cottonwood Creek (stream)
- Cottonwood Creek (stream)
- Cottonwood Creek (stream)
- Cottonwood Creek (stream)
- Cottonwood Creek (stream)
- Coulton Creek (stream)
- Cow Creek (stream)
- Coyote Creek (stream)
- Craig Horse Creek (stream)
- Crawford Creek (stream)
- Creamery Ditch (canal)
- Crooked Creek (stream)
- Crooked Creek Reservoir (reservoir(s))
- Crosho Outlet Ditch (stream)
- Cross Creek (stream)
- Crossan Reservoir (reservoir(s))
- Crowner Creek (stream)
- Crowner Reservoir (reservoir(s))
- Daggett and Parker Ditch (canal)
- Day Creek (stream)
- Dead Buck Reservoir (reservoir(s))
- Deadman Creek (stream)
- Decker Creek (stream)
- Deep Creek (stream)
- Deep Creek (stream)
- Deer Creek (stream)
- Dell (city)
- Deluge Creek (stream)
- Deluge Lake (lake)
- Detwiller Reservoir (reservoir(s))
- Dickson Creek (stream)
- Dillabaugh Reservoir (reservoir(s))
- Ditch Creek (stream)
- Dodd Ditch (canal)
- Domantle Lake (lake)
- Dome Lake (lake)
- Dotsero (populated place)
- Douglas Creek (stream)
- Downey Creek (stream)
- Dry Creek (stream)
- Dry Creek (stream)
- Dry Fork Elkhead Creek (stream)
- Dry Lake (lake)
- Dry Lake (lake)
- Dry Miller Creek (stream)
- Duck Lake (lake)
- Dudley Creek (stream)
- Dunckley (city)
- Dunckley and Dubeau Reservoir (reservoir(s))
- Dutch Creek (stream)
- E M Curry Reservoir (reservoir(s))
- Eagle (city)
- Eagle Lake (lake)
- Eagle River (stream)
- Eagle Rock Lakes (lake)
- East Beard Reservoir (reservoir(s))
- East Branch South Fork Mad Creek (stream)
- East Brush Creek (stream)
- East Cross Creek (stream)
- East Downey Creek (stream)
- East Fork Eagle River (stream)
- East Fork Oliver Creek (stream)
- East Fork Red Canyon Creek (stream)
- East Fork Red Dirt Creek (stream)
- East Fork Sheep Creek (stream)
- East Fork Three Licks Creek (stream)
- East Jakeman Creek (stream)
- East Lake Creek (stream)
- East Meadow Creek (stream)
- East Side Number 2 Ditch (canal)
- Eby Creek (stream)
- Edges Lake (lake)
- Edwards (populated place)
- Egeria (city)
- Egeria Creek (stream)
- Egeria Creek Reservoir (reservoir(s))
- El Jebel (populated place)
- Elk Creek (stream)
- Elk Creek (stream)
- Elk Creek (stream)
- Elk River (stream)
- Elk River (city)
- Elk Valley Ditch (canal)
- Elkhead (city)
- Emerald Lake (lake)
- Emrich Reservoir (reservoir(s))
- English Creek (stream)
- Erickson Creek (stream)
- Erickson Lake (lake)
- Fairview Lake (lake)
- Fall Creek (stream)
- Fancy Creek (stream)
- Fancy Lake (lake)
- Farnsworth Creek (stream)
- Farwell Creek (stream)
- Farwell Lake (lake)
- Fawn Creek (stream)
- Ferguson Ditch (canal)
- Fiddler Creek (stream)
- First Creek (stream)
- First Fork South Fork Piney River (stream)
- Fish Creek (stream)
- Fish Creek (stream)
- Fish Creek (stream)
- Fish Creek Reservoir (reservoir(s))
- Fish Hawk Lake (lake)
- Fish Pond Lake (lake)
- Fishhook Creek (stream)
- Fishhook Lake (lake)
- Five Pine Mesa Creek (stream)
- Five Pine Mesa Ditch (canal)
- Fleck Ditch (canal)
- Floyd Creek (stream)
- Fly Creek (stream)
- Foidel Creek (stream)
- Frantz Ditch (canal)
- Franz Creek (stream)
- Freeman Creek (stream)
- Freeman Creek (stream)
- French Creek (stream)
- Frenchman Creek (stream)
- Frost Creek (stream)
- Fryingpan River (stream)
- Fulford (populated place)
- G G Upper Reservoir (reservoir(s))
- Game Creek (stream)
- Gardner Creek (stream)
- Gardner Park Reservoir (reservoir(s))
- George Lake (lake)
- Gibralter Ditch (canal)
- Gill Reservoir (reservoir(s))
- Gilpin Creek (stream)
- Gilpin Lake (lake)
- Girard Creek (stream)
- Gold Blossom Creek (stream)
- Gold Creek Lake (lake)
- Gold Dust Lakes (lake)
- Goodson Creek (stream)
- Goose Creek (stream)
- Gore Creek (stream)
- Gore Lake (lake)
- Gould Creek (stream)
- Graham Ditch (canal)
- Granite Creek (stream)
- Grape Creek (stream)
- Grassy Creek (stream)
- Greasewood Flat Reservoir (reservoir(s))
- Green Creek (stream)
- Green Creek (stream)
- Greenhorn Creek (stream)
- Greenville Creek (stream)
- Grimes Brooks Reservoir (reservoir(s))
- Grizzley Creek (stream)
- Grouse Creek (stream)
- Grouse Creek (stream)
- Grouse Lake (lake)
- Grundell Creek (stream)
- Gunn Creek (stream)
- Gutzler Lakes (lake)
- Gypsum (populated place)
- Gypsum Creek (stream)
- Hadley Reservoir (reservoir(s))
- Hahns Peak (city)
- Hahns Peak Lake (reservoir(s))
- Halfmoon Lake (lake)
- Harper Reservoir (reservoir(s))
- Harris (city)
- Harrison Creek (stream)
- Harvey Lake (lake)
- Hat Creek (stream)
- Haybro (city)
- Hayden (city)
- Hayden Plant Evaporation Pond (reservoir(s))
- Hells Hole (stream)
- Hells Hole Reservoir (reservoir(s))
- Henderson Reservoir (reservoir(s))
- Hernage Creek (stream)
- Hernage Ditch (canal)
- Hinman Creek (stream)
- Hinman Lake (lake)
- Hitchens (city)
- Ho O R Ditch (canal)
- Hockett Ditch (canal)
- Hogan Creek (stream)
- Hole-in-the-Wall Creek (stream)
- Hollingsworth and Potter Ditch (canal)
- Hollingsworth Ditch (canal)
- Holy Cross City (city)
- Home Supply Ditch (canal)
- Homestake Creek (stream)
- Homestead Ditch (canal)
- Horse Creek (stream)
- Horse Lake (lake)
- Horse Pond (lake)
- Horseshoe Creek (stream)
- Horseshoe Lake (lake)
- Hot Spring Creek (stream)
- Hot Springs Highline Ditch (canal)
- Howard and Winslow Ditch (canal)
- Howard Ditch (canal)
- Hunky Dory Lake (lake)
- Hunt Creek (stream)
- Hurt Reservoir (reservoir(s))
- Independence Creek (stream)
- Indian Creek (stream)
- Indian Grove Reservoir (reservoir(s))
- Indian Run (stream)
- Iola Creek (stream)
- J B Dawson Number One Reservoir (reservoir(s))
- J O K Reservoir Number One (reservoir(s))
- Jack Creek (stream)
- Jakeman Creek (stream)
- James Marion Yoast Reservoir (reservoir(s))
- James Spring Reservoir (reservoir(s))
- Jenkins Creek (stream)
- John C Temple Reservoir Number 1 (reservoir(s))
- John C Temple Reservoir Number 2 (reservoir(s))
- Johnson and Howard Ditch (canal)
- Johnson Creek (stream)
- JOK Reservoir Number 1 (reservoir(s))
- Jokodowski Creek (stream)
- Josephine Lake (lake)
- Jouflas Spring Reservoir (reservoir(s))
- June Creek (stream)
- June Creek Ditch (canal)
- June Creek Reservoir (reservoir(s))
- Kayser Mutual Ditch (canal)
- Keller Ditch (canal)
- Kelly Creek (stream)
- Kelly Lake (lake)
- Kelly Reservoir (reservoir(s))
- Keystone (city)
- Kiln Creek (stream)
- King Creek (stream)
- King Solomon Creek (stream)
- Knife Edge Reservoir (reservoir(s))
- Koll Ditch Number 1 (canal)
- Kuntz Creek (stream)
- Lagunita Lake (lake)
- Lake Catamount (reservoir(s))
- Lake Charles (lake)
- Lake Constantine (lake)
- Lake Creek (stream)
- Lake Creek Reservoir (reservoir(s))
- Lake Diana (lake)
- Lake Dinosaur (lake)
- Lake Edward (lake)
- Lake Elbert (lake)
- Lake Elmo (lake)
- Lake Esther (lake)
- Lake Fork Reservoir (reservoir(s))
- Lake Margaret (lake)
- Lake of the Crags (lake)
- Lake Patricia (lake)
- Lake Thomas (lake)
- Lake Windemere (reservoir(s))
- Lakes of the Crags (lake)
- Larson Creek (stream)
- Larson Reservoir (reservoir(s))
- Last Chance Creek (stream)
- Last Chance Ditch (stream)
- Lava Creek (stream)
- Lava Lake (lake)
- Lawson Creek (stream)
- LEDE Reservoir (reservoir(s))
- Leeman Lakes (lake)
- Leonard Horn Ditch Number 1 (canal)
- Lester Creek (stream)
- Lily Pond (reservoir(s))
- Lime Creek (stream)
- Lime Creek (stream)
- Lime Creek (stream)
- Lion Basin Ditch (canal)
- Little Cottonwood Reservoir (reservoir(s))
- Little Lime Creek (stream)
- Little Lost Lake (lake)
- Little Middle Creek (stream)
- Little Morrison Creek (stream)
- Little Rock Creek (stream)
- Little Trout Creek (stream)
- Little White Snake Creek (stream)
- Little Wolf Creek (stream)
- Lone Lick Creek (stream)
- Lone Lick Lakes (lake)
- Lone Pine Creek (stream)
- Long Lake (lake)
- Long Park Creek (stream)
- Lopez Creek (stream)
- Lost Dog Creek (stream)
- Lost Lake (lake)
- Lost Lake (lake)
- Lost Lake (lake)
- Lost Lakes (lake)
- Lost Reservoir Number One (reservoir(s))
- Lost Reservoir Number Three (reservoir(s))
- Lost Reservoir Number Two (reservoir(s))
- Love and White Ditch (canal)
- Lower Beard Number One Reservoir (reservoir(s))
- Lower Turquoise Lake (lake)
- Luark Reservoir (reservoir(s))
- Lui Hopper Ditch (canal)
- Luna Lake (lake)
- Mad Creek (stream)
- Maria Bottoms (stream bend)
- Marma Lake (lake)
- Marshall Roberts Ditch (canal)
- Martin Creek (stream)
- Martin Creek (stream)
- Martin Creek Reservoir (reservoir(s))
- Marugg Creek (stream)
- Mason Creek (stream)
- Mathews Ditch (canal)
- Maud Wise Reservoir (reservoir(s))
- McBrayer and Fenner Ditch (canal)
- McBrayer Ditch (canal)
- McCargar Reservoir (reservoir(s))
- McChivvis Reservoir (reservoir(s))
- McCoy (populated place)
- McCoy Creek (stream)
- McCoy Reservoir (reservoir(s))
- McGregor (city)
- McHatten Creek (stream)
- McHatten Reservoir (reservoir(s))
- McKenzie Ditch (canal)
- McKinley Ditch Number 1 (canal)
- McKinley Ditch Number 2 (canal)
- McKinnis Creek (stream)
- McKinnis Creek (stream)
- McNulty Reservoir (reservoir(s))
- McPhee Creek (stream)
- McPhee Creek (stream)
- Meadow Creek (stream)
- Meadowbrook Creek (stream)
- Meredith (city)
- Metcalf Creek (stream)
- Metcalf Ditch (canal)
- Mica Creek (stream)
- Mica Lake (lake)
- Middle Creek (stream)
- Middle Creek (stream)
- Middle Creek (stream)
- Middle Creek (stream)
- Middle Fish Creek (stream)
- Middle Fork Elk River (stream)
- Middle Fork Fish Creek (stream)
- Middle Fork Little Snake River (stream)
- Middle Fork Mad Creek (stream)
- Middle Hunt Creek (stream)
- Middle Lake (lake)
- Middle Lake Creek (stream)
- Milk Creek (stream)
- Mill Creek (stream)
- Mill Creek (stream)
- Mill Creek (stream)
- Mill Creek (stream)
- Mill Creek (stream)
- Mill Creek Ditch (stream)
- Miller Creek (stream)
- Miller Creek (stream)
- Miller Ditch (canal)
- Miller Gulch Creek (stream)
- Mills Pond (reservoir(s))
- Milner (city)
- Milner Spring Creek (stream)
- Minturn (populated place)
- Mirror Lake (lake)
- Missouri Creek (stream)
- Missouri Lakes (lake)
- Mitchell (city)
- Mitchell Creek (stream)
- Moniger Creek (stream)
- Moody Creek (stream)
- Moody Lake (lake)
- Moore Park Creek (stream)
- Morgan Creek (stream)
- Morgan Creek (stream)
- Morgan Creek Reservoir Number 1 (reservoir(s))
- Mormon Creek (stream)
- Morris Reservoir (reservoir(s))
- Morrison Creek (stream)
- Muckey Lake (lake)
- Muddy Creek (stream)
- Muddy Creek (stream)
- Mulhall Lakes (lake)
- Murphy Creek (stream)
- Murphy Ditch (canal)
- Mystic (city)
- Mystic Island Lake (lake)
- New York Lake (lake)
- Newcomer Creek (stream)
- Nile Ditch (canal)
- No Name Creek (stream)
- Noble Reservoir (reservoir(s))
- Noecker Reservoir (reservoir(s))
- Nofstger Reservoir (reservoir(s))
- Nofstger Zeigler Reservoir (reservoir(s))
- Nolan Creek (stream)
- Nolan Lake (lake)
- Norman Creek (stream)
- North Fork Big Creek (stream)
- North Fork Cattle Creek (stream)
- North Fork Cedar Creek (stream)
- North Fork Elk Creek (stream)
- North Fork Elkhead Creek (stream)
- North Fork Fish Creek (stream)
- North Fork Mad Creek (stream)
- North Fork Middle Creek (stream)
- North Fork Morrison Creek (stream)
- North Fork Piney River (stream)
- North Hunt Creek Ditch (canal)
- North Lake (lake)
- Notch Mountain Creek (stream)
- Nottingham and Puder Ditch (canal)
- Nottingham Reservoir (reservoir(s))
- Number One Reservoir (reservoir(s))
- Oak Creek (city)
- Oak Creek Ditch (canal)
- Oak Creek Reservoir (reservoir(s))
- Oak Dale Ditch (canal)
- Oelsen Ditch (canal)
- Ohio Creek (stream)
- Oleson Ditch (canal)
- Oliver Creek (stream)
- Olsen Lake (lake)
- Oneill Holland Ditch (canal)
- Otto Creek (stream)
- Overman Reservoir (reservoir(s))
- Oxford Lake (lake)
- Oxide Tailings Pond (reservoir(s))
- Palisades Ditch (canal)
- Pando (city)
- Pat Creek (stream)
- Pearl Creek (stream)
- Pearl Lake (reservoir(s))
- Peterson Creek (stream)
- Peterson Ditch (canal)
- Peterson Ditch Number 1 (canal)
- Phillips Creek (stream)
- Phippsburg (city)
- Picture Lake (lake)
- Pine Creek (stream)
- Piney Lake (lake)
- Piney River (stream)
- Pioneer Creek (stream)
- Pipe Creek (stream)
- Pitkin Creek (stream)
- Pitkin Lake (lake)
- Poison Creek (stream)
- Polar Star Lake (lake)
- Polk Creek (stream)
- Pond Creek (stream)
- Pond Lily Lakes (lake)
- Porcupine Creek (stream)
- Porcupine Creek (stream)
- Porcupine Lake (lake)
- Posey Creek (stream)
- Price Reservoir (reservoir(s))
- Priest Creek (stream)
- Pristine Lake (lake)
- Ptarmigan Lake (lake)
- Ragged Lakes (lake)
- Rainbow Lake (lake)
- Ranch Creek (stream)
- Range (city)
- Raspberry Creek (stream)
- Red Canyon Creek (stream)
- Red Cliff (populated place)
- Red Creek (stream)
- Red Creek (stream)
- Red Dirt Creek (stream)
- Red Dirt Creek (stream)
- Red Sandstone Creek (stream)
- Reed Creek (stream)
- Reed Creek (stream)
- Reid Reservoir (reservoir(s))
- Renfro Creek (stream)
- Reservoir Number Three (reservoir(s))
- Reservoir Number Two (reservoir(s))
- Resolution Creek (stream)
- Rim Lake (lake)
- Roaring Fork Creek (stream)
- Roaring Fork Ditch (canal)
- Roberta Reservoir (reservoir(s))
- Robinson Lake (reservoir(s))
- Rock Creek (stream)
- Rock Creek (stream)
- Rock Creek (stream)
- Rock Creek (stream)
- Rock Lake (lake)
- Rosa Lake (lake)
- Rossi Highline Ditch (canal)
- Rube Creek (stream)
- Ruedi Creek (stream)
- Saddle Reservoir (reservoir(s))
- Sage Creek (stream)
- Sage Creek Reservoir (reservoir(s))
- Sagebrush Reservoir Number 1 (reservoir(s))
- Salt Creek (stream)
- Salt Creek (stream)
- Salt Creek (stream)
- Sand Creek (stream)
- Sand Creek (stream)
- Sand Creek Ditch (canal)
- Sarvis Creek (stream)
- Savage Lakes (lake)
- Sawtooth Creek (stream)
- Schlegel Lake (lake)
- Schumm Ditch Number 1 (canal)
- Scott Run (stream)
- Second Creek (stream)
- Second Creek (stream)
- Sedimentation Pond HG-1 Reservoir (reservoir(s))
- Sellers-Crowell Reservoir (reservoir(s))
- Seven Castles Creek (stream)
- Seven Sisters Lakes (lake)
- Shaefermeyer Creek (stream)
- Shaefermeyer Reservoir Number 1 (reservoir(s))
- Shaefermeyer Reservoir Number 4 (reservoir(s))
- Shaffer Reservoir (reservoir(s))
- Sheephorn (city)
- Shelton Ditch (canal)
- Sherwood Ditch (canal)
- Shingle Lake (lake)
- Shoe and Stocking Creek (stream)
- Sidney (city)
- Silver City Creek (stream)
- Silver Creek (stream)
- Silver Creek (stream)
- Skunk Creek (stream)
- Slate Creek (stream)
- Slate Creek (stream)
- Slater Creek (stream)
- Slater Creek Lake (lake)
- Sleepy Creek (stream)
- Slide Lake (lake)
- Slough Grass Lake (lake)
- Smith Creek (stream)
- Smith Creek (stream)
- Smith Creek (stream)
- Smith Creek (stream)
- Smith Ditch (canal)
- Snow Lake (lake)
- Snowstorm Lake (lake)
- Soda Creek (stream)
- Soda Creek (stream)
- Soda Lakes (lake)
- Sopris Creek (stream)
- Sopris Creek (stream)
- Sopris Lake (lake)
- Sourdough Creek (stream)
- Sourdough Lakes (lake)
- South Derby Ditch (canal)
- South Fork Dickson Creek (stream)
- South Fork Elk River (stream)
- South Fork Little Snake River (stream)
- South Fork Mad Creek (stream)
- South Fork Piney River (stream)
- South Fork Red Sandstone Creek (stream)
- South Fork Silver Creek (stream)
- South Fork Soda Creek (stream)
- South Franz Creek (stream)
- South Portal Outlet (channel)
- South Spronks Creek (stream)
- Spalding Reservoir (reservoir(s))
- Spine Creek (stream)
- Spraddle Creek (stream)
- Spring Creek (stream)
- Spring Creek (stream)
- Spring Creek (stream)
- Spring Creek (stream)
- Spring Creek (stream)
- Spring Creek Number One Reservoir (reservoir(s))
- Spring Creek Number Two Reservoir (reservoir(s))
- Spring Park Reservoir (reservoir(s))
- Squaw Creek (stream)
- Squire and Hammond Ditch (canal)
- Stark Creek (stream)
- State Bridge (city)
- Staton and Cissna Ditch (canal)
- Steamboat Lake (lake)
- Steamboat Lake (reservoir(s))
- Steamboat Springs (city)
- Sterner Reservoir (reservoir(s))
- Stevens Creek (stream)
- Stifel Creek (stream)
- Stone Creek (stream)
- Storm King Creek (stream)
- Stratton Ditch (canal)
- Strawberry Lakes (lake)
- Stremme and Gates Ditch (canal)
- Sugar Creek (stream)
- Sugarloaf Lake (lake)
- Summit Creek (stream)
- Sundell Creek (stream)
- Sundell Reservoir (reservoir(s))
- Sunnyside Creek (stream)
- Sunnyside Lakes (lake)
- Suttle Ditch (canal)
- Sutton Creek (stream)
- Swamp Creek (stream)
- Swamp Drain (canal)
- Sylvan Lake (lake)
- Tames Creek (stream)
- Tames Number One Reservoir (reservoir(s))
- Tames Number Two Reservoir (reservoir(s))
- Taylor Creek (stream)
- Taylor Creek (stream)
- Tellurium Lake (lake)
- Tennessee Creek (stream)
- Tepee Creek (stream)
- Terrell and Ford Ditch (canal)
- Terrell Creek (stream)
- The Beaver Ponds (lake)
- Thomasville (city)
- Thompson Creek (stream)
- Three Island Lake (lake)
- Three Licks Creek (stream)
- Tie Camp Ditch (canal)
- Tie Creek (stream)
- Timber Creek (stream)
- Todd Creek (stream)
- Tom Creek (stream)
- Toner Creek (stream)
- Toner Reservoir (reservoir(s))
- Tonier Gulch Reservoir (reservoir(s))
- Toponas (city)
- Toponas Creek (stream)
- Toponas Rock Reservoir Number 2 (reservoir(s))
- Torso Creek (stream)
- Tow Creek (stream)
- Townsend Ditch (canal)
- Traer Creek (stream)
- Trail Creek (stream)
- Trapper (city)
- Travis Creek (stream)
- Treasure Vault Lake (lake)
- Triangle Creek (stream)
- Triangle Reservoir (reservoir(s))
- Trout Creek (stream)
- Trout Creek Ditch (stream)
- Trout Creek Ditch Number 4 (canal)
- Trout Creek School Ditch (stream)
- Trull Creek (stream)
- Trull Creek Reservoir Number 1 (reservoir(s))
- Tuhare Lakes (lake)
- Tunnel Creek (stream)
- Turkey Creek (stream)
- Turner Creek (stream)
- Twin Lakes (lake)
- Two by Four Creek (stream)
- Two Elk Creek (stream)
- Upper Camp Lake (lake)
- Upper Piney Lake (lake)
- Upper Robinson Reservoir (reservoir(s))
- Upper Turquoise Lake (lake)
- Ute Creek (stream)
- Ute Spring Reservoir (reservoir(s))
- Vail (populated place)
- Van Springs Reservoir (reservoir(s))
- Von Springs Reservoir Number 1 (reservoir(s))
- Von Springs Reservoir Number 2 (reservoir(s))
- Walker Ditch (canal)
- Waller Reservoir (reservoir(s))
- Walrod Reservoir (reservoir(s))
- Walters Lake (lake)
- Walton Creek (stream)
- Walton Creek Ditch (canal)
- Warren Ditch (canal)
- Waterbury Creek (stream)
- Waterdog Lake (lake)
- Waterdog Lake (lake)
- Wearyman Creek (stream)
- Welsh Reservoir (reservoir(s))
- West Beard Reservoir (reservoir(s))
- West Branch Red Dirt Creek (stream)
- West Cross Creek (stream)
- West Fish Creek (stream)
- West Fork Cottonwood Creek (stream)
- West Fork Elk River (stream)
- West Grouse Creek (stream)
- West Side Highland Ditch (canal)
- Wheeler Creek (stream)
- Whetstone Reservoir (reservoir(s))
- Whetstone Reservoir Number 3 (reservoir(s))
- Whipple Creek (stream)
- Whiskey Creek (stream)
- Whiskey Creek (stream)
- Whiskey Creek (stream)
- White Creek (stream)
- Whiteley-Nelson Reservoir (reservoir(s))
- Whitney Creek (stream)
- Whitney Lake (lake)
- Wilkinson Ditch (canal)
- Williams Park Ditch (canal)
- Willow Creek (stream)
- Willow Creek (stream)
- Willow Creek (stream)
- Willow Creek (stream)
- Willow Creek (stream)
- Willow Creek (stream)
- Willow Creek Lake (lake)
- Willow Lake (lake)
- Wilmor (city)
- Wilmor Lake (lake)
- Wilson Creek (stream)
- Wingo (city)
- Wither Ditch (canal)
- Wohler Reservoir (reservoir(s))
- Wolcott (populated place)
- Wolf Creek (stream)
- Wolverine Creek (stream)
- Wolverine Lake (lake)
- Woodchuck Ditch (canal)
- Woods Lake (lake)
- Wurts Ditch (canal)
- Wyman Reservoir (reservoir(s))